Originally Posted by Predator Pete
For some reason I can't get "【フォーントリガー】未読メールを残したままクリアする" to unlock. I have the achievements for customizing the ring tone and the wallpaper, but not the email alert. Any clues?
Oops... didn't know there was such an achievement in this game. I will update the guide. This achievement requires you to have at least one unread message at the end of the game.